Hydraulic stump-puller.



F. A. LONG.

HYDRAULIC STU MP FULLER. APPLICATION FILED 1UNE25.I9H-

Patented Mar. 12, 1918.

2 SHEETS-SHEET h F, A. LONG.

HYDRAULIC STUMP PU LLEB. APPLICATION FILED JUNE 26. 1917.

1,258,691. Patented Mar. 12, 1918.

' 2 SHEETS-SHEET 1.

anwnto'a Frank/ '12 4 L009 attonuu A. LONG, 01' EUREKA, MONTANA.

HYDBAULIC STUMP-PULLEB.

Specification of Letters Patent.

Patented Mar. 12, 1918.

Application filed June 26, 1917. Serial No. 177,004.

To all whom it may concern:

Be it known that I, FRANKLIN A. Lone, a citizen of the United States, residing at Eureka, in the county of Flat Head and State of Montana, have invented certain new and useful Improvements in Hydraulic Stump-Pullers, of which the following is a specification.

My invention relates to improvements in hydraulic stump pullers, andthe broad object thereof is the provision of a portable and very powerful contrivance of practical design which embodies novel features of construction, and a new and advantageous combination and arrangement of its essential elements.

Generally speaking, the complete apparatus includes a vehicle consisting of a frame or platform. supported on skids, a horizontally disposed hydraulic cylinder with its piston and rod mounted on the platform or frame of the .vehicle, a trackway on the platform at one end of the cylinder, a carriage adapted to travel on the trackway and connected to the piston rod, a rotatable cable drum or'reel mounted on the carriage, a cable for the drum adapted to have one end secured to the stump to be pulled, a cable drum or reel mounted on the platform at the opposite end of the cylinder and having a cable adapted to be fastened to a tree or other anchoring means or object, and means for supplying hydraulic power to the cylinder.

The invention further includes minor fea tures to be pointed out in the following specification wherein the details of construction will be fully described in connection with the accompanying drawing which illustrate a practical mechanism embodying the Principles of the invention, and in which Figure 1 is a severed top plan view of the complete puller.

Fig. 2 is a side elevation thereof showing the method of using the same.

Fig. 3 is an end view taken from the right of Figs. 1 and 2.

Referring more specifically to the drawings in which like reference characters indicate like parts in the several views, the numeral 1 designates the platform of a vehicle preferably supported on skidsor runners 2 tov render the contrivance ortable. A hydraulic cylinder 3 mountei on blocks 4 secured to the platformextends longitudinally of the platform, the piston rod 5 thereof having its free end connected to a carriage 6 which carriage is supported upon a pair of rollers 7 and adapted to travel lengthwise of the platform in alinement with the piston and upon tracks 8. The frame of the carriage 6 has rotatably mounted thereon a cable drum or reel 9 provided with a crank handle 10 and ratchet wheels 11 and pawls 12 adapted to lock the drum to prevent reverse rotation thereof, Upon the opposite end of the platform 1 and adjacent one end of the hydraulic cylinder is mounted by means of a bracket 13 a cable drum or'reel 14' having a crank handle 15 and ratchet wheels 16 and pawls 17,

A fluid supply reservoir 18 has pipe connection 19 with a hydraulic pump 20 driven from any suitable source of ower such as a gasolenc engine (not shown through the medium of a drive wheel 21 and power belting 22, said pump havin piping 23 provided with a valve 24 tov eliver fluid from the reservoir under pressure to either end of the hydraulic cylinder. To prevent blowing out of the, cylinder heads bypass pipes 25 having valves 25 connect the pipin 23 with the opposite end portions of the cy inder so that the'pressure will bypass .therethrough and back to the pump when the limit. of stroke of the piston is reached.

In actual use, cables 9 and 14 are intended to have their free ends fastened securely to. a stump and an anchoring tree or other anchoring object, respectively, and with the piston rod 5 fully extended any slack in the cables taken up onthe drums 9 and 14. Power i then applied as indicated.

In order to properly direct the stump pulling cable 9 to maintain the same in aline ment with the piston so as to avoid any tendency of side stress or strain when tension is exerted on the cable, the cable is passed through a guide aperture 24 in the frame of the carriage 6 and on between opposed sheaves 25 supported upon extended brack- 1 on the support, a power cylinder mounted on the support, a piston and rod for the cylinder the outer end of the rod being connected to said carriage, and means for driving said piston.

2. In a stump puller, the combination of a portable support, tracks on the support,

a carriage adapted to travel. on the tracks a rotatable cable drum carried by-the carriage, a cable, a guide on the carriage for the cable, extended opposed sheaves supported by brackets secured to the support and adapted to engage said cable, means for anchoring the support, a power cylinder mounted on the'support, a piston and rod for the cylinder the outer end of the rod having connection with said carriage, and means for driving said piston.

3.111 a stump puller, the combination of a portable support, tracks on the support, a carriage adapted to travel on the tracks, a rotatable cable drum carried by the carriage, a cable, a-guide on .the carriage for the cable, extended opposed sheaves supported by brackets secured to .the support and adapted to engage said cable, anchoring means for the support, a hydraulic cylinder mounted on' the support, a iston and rod for the cylinder the outer end of the rod having connection with said carriage, a fluid supply reservoir, a hydraulic pump adapted to supply hydraulic power from the reservoir to the cylinder, and means for driving the pump.

In testimony whereof I afiix my signature.

FRANKLIN A. LONG. 

